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java.lang.Objectorg.relique.jdbc.csv.CsvConnection
This class implements the Connection interface for the CsvJdbc driver.
Field Summary |
Fields inherited from interface java.sql.Connection |
TRANSACTION_NONE, TRANSACTION_READ_COMMITTED, TRANSACTION_READ_UNCOMMITTED, TRANSACTION_REPEATABLE_READ, TRANSACTION_SERIALIZABLE |
Constructor Summary | |
protected |
CsvConnection(java.lang.String path)
Creates a new CsvConnection that takes the supplied path |
protected |
CsvConnection(java.lang.String path,
java.util.Properties info)
Creates a new CsvConnection that takes the supplied path and properties |
Method Summary | |
void |
clearWarnings()
Clears all warnings reported for this Connection object. |
void |
close()
Releases this Connection object's database and JDBC
resources immediately instead of waiting for them to be automatically
released. |
void |
commit()
Makes all changes made since the previous commit/rollback permanent and releases any database locks currently held by this Connection object. |
java.sql.Statement |
createStatement()
Creates a Statement object for sending
SQL statements to the database. |
java.sql.Statement |
createStatement(int resultSetType,
int resultSetConcurrency)
Creates a Statement object that will generate
ResultSet objects with the given type and concurrency. |
java.sql.Statement |
createStatement(int resultSetType,
int resultSetConcurrency,
int resultSetHoldability)
|
boolean |
getAutoCommit()
Retrieves the current auto-commit mode for this Connection
object. |
protected java.lang.String |
getCarriageReturnEscape()
|
java.lang.String |
getCatalog()
Retrieves this Connection object's current catalog name. |
protected java.lang.String |
getCharset()
Accessor method for the charset property |
protected java.lang.String |
getExtension()
Accessor method for the extension property |
int |
getHoldability()
Retrieves the current holdability of ResultSet objects created using this Connection object. |
protected java.lang.String |
getLineBreakEscape()
|
protected long |
getMaxFileSize()
|
java.sql.DatabaseMetaData |
getMetaData()
Retrieves a DatabaseMetaData object that contains
metadata about the database to which this
Connection object represents a connection. |
protected java.lang.String |
getPath()
Accessor method for the path property |
protected char |
getSeperator()
Accessor method for the separator property |
int |
getTransactionIsolation()
Retrieves this Connection object's current
transaction isolation level. |
java.util.Map |
getTypeMap()
Retrieves the Map object associated with this
Connection object. |
protected boolean |
getUseQuotes()
|
protected boolean |
getUseQuotesEscape()
|
java.sql.SQLWarning |
getWarnings()
Retrieves the first warning reported by calls on this Connection object. |
boolean |
isClosed()
Retrieves whether this Connection object has been
closed. |
boolean |
isReadOnly()
Retrieves whether this Connection
object is in read-only mode. |
protected boolean |
isSuppressHeaders()
Accessor method for the suppressHeaders property |
protected boolean |
isTrimString()
Accessor method for the trimString property |
java.lang.String |
nativeSQL(java.lang.String sql)
Converts the given SQL statement into the system's native SQL grammar. |
java.sql.CallableStatement |
prepareCall(java.lang.String sql)
Creates a CallableStatement object for calling
database stored procedures. |
java.sql.CallableStatement |
prepareCall(java.lang.String sql,
int resultSetType,
int resultSetConcurrency)
Creates a CallableStatement object that will generate
ResultSet objects with the given type and concurrency. |
java.sql.CallableStatement |
prepareCall(java.lang.String sql,
int resultSetType,
int resultSetConcurrency,
int resultSetHoldability)
|
java.sql.PreparedStatement |
prepareStatement(java.lang.String sql)
Creates a PreparedStatement object for sending
parameterized SQL statements to the database. |
java.sql.PreparedStatement |
prepareStatement(java.lang.String sql,
int autoGeneratedKeys)
|
java.sql.PreparedStatement |
prepareStatement(java.lang.String sql,
int[] columnIndexes)
|
java.sql.PreparedStatement |
prepareStatement(java.lang.String sql,
int resultSetType,
int resultSetConcurrency)
Creates a PreparedStatement object that will generate
ResultSet objects with the given type and concurrency. |
java.sql.PreparedStatement |
prepareStatement(java.lang.String sql,
int resultSetType,
int resultSetConcurrency,
int resultSetHoldability)
|
java.sql.PreparedStatement |
prepareStatement(java.lang.String sql,
java.lang.String[] columnNames)
|
void |
releaseSavepoint(java.sql.Savepoint savepoint)
|
void |
rollback()
Undoes all changes made in the current transaction and releases any database locks currently held by this Connection object. |
void |
rollback(java.sql.Savepoint savepoint)
|
void |
setAutoCommit(boolean autoCommit)
Sets this connection's auto-commit mode to the given state. |
void |
setCatalog(java.lang.String catalog)
Sets the given catalog name in order to select a subspace of this Connection object's database
in which to work. |
void |
setHoldability(int holdability)
Changes the holdability of ResultSet objects
created using this Connection object to the given
holdability. |
void |
setReadOnly(boolean readOnly)
Puts this connection in read-only mode as a hint to the driver to enable database optimizations. |
java.sql.Savepoint |
setSavepoint()
|
java.sql.Savepoint |
setSavepoint(java.lang.String name)
|
void |
setTransactionIsolation(int level)
Attempts to change the transaction isolation level for this Connection object to the one given. |
void |
setTypeMap(java.util.Map map)
Installs the given TypeMap object as the type map for
this Connection object. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
protected CsvConnection(java.lang.String path) throws java.sql.SQLException
path
- directory where the CSV files are locatedprotected CsvConnection(java.lang.String path, java.util.Properties info) throws java.sql.SQLException
path
- directory where the CSV files are locatedinfo
- set of properties containing custom optionsMethod Detail |
public java.sql.Statement createStatement() throws java.sql.SQLException
Statement
object for sending
SQL statements to the database.
SQL statements without parameters are normally
executed using Statement
objects. If the same SQL statement
is executed many times, it may be more efficient to use a
PreparedStatement
object.
Result sets created using the returned Statement
object will by default be type TYPE_FORWARD_ONLY
and have a concurrency level of CONCUR_READ_ONLY
.
createStatement
in interface java.sql.Connection
Statement
object
java.sql.SQLException
- if a database access error occurspublic java.sql.PreparedStatement prepareStatement(java.lang.String sql) throws java.sql.SQLException
PreparedStatement
object for sending
parameterized SQL statements to the database.
A SQL statement with or without IN parameters can be
pre-compiled and stored in a PreparedStatement
object. This
object can then be used to efficiently execute this statement
multiple times.
Note: This method is optimized for handling
parametric SQL statements that benefit from precompilation. If
the driver supports precompilation,
the method prepareStatement
will send
the statement to the database for precompilation. Some drivers
may not support precompilation. In this case, the statement may
not be sent to the database until the PreparedStatement
object is executed. This has no direct effect on users; however, it does
affect which methods throw certain SQLException
objects.
Result sets created using the returned PreparedStatement
object will by default be type TYPE_FORWARD_ONLY
and have a concurrency level of CONCUR_READ_ONLY
.
prepareStatement
in interface java.sql.Connection
sql
- an SQL statement that may contain one or more '?' IN
parameter placeholders
PreparedStatement
object containing the
pre-compiled SQL statement
java.sql.SQLException
- if a database access error occurspublic java.sql.CallableStatement prepareCall(java.lang.String sql) throws java.sql.SQLException
CallableStatement
object for calling
database stored procedures.
The CallableStatement
object provides
methods for setting up its IN and OUT parameters, and
methods for executing the call to a stored procedure.
Note: This method is optimized for handling stored
procedure call statements. Some drivers may send the call
statement to the database when the method prepareCall
is done; others
may wait until the CallableStatement
object
is executed. This has no
direct effect on users; however, it does affect which method
throws certain SQLExceptions.
Result sets created using the returned CallableStatement
object will by default be type TYPE_FORWARD_ONLY
and have a concurrency level of CONCUR_READ_ONLY
.
prepareCall
in interface java.sql.Connection
sql
- an SQL statement that may contain one or more '?'
parameter placeholders. Typically this statement is a JDBC
function call escape string.
CallableStatement
object containing the
pre-compiled SQL statement
java.sql.SQLException
- if a database access error occurspublic java.lang.String nativeSQL(java.lang.String sql) throws java.sql.SQLException
nativeSQL
in interface java.sql.Connection
sql
- an SQL statement that may contain one or more '?'
parameter placeholders
java.sql.SQLException
- if a database access error occurspublic void setAutoCommit(boolean autoCommit) throws java.sql.SQLException
commit
or the method rollback
.
By default, new connections are in auto-commit
mode.
The commit occurs when the statement completes or the next
execute occurs, whichever comes first. In the case of
statements returning a ResultSet
object,
the statement completes when the last row of the
ResultSet
object has been retrieved or the
ResultSet
object has been closed. In advanced cases, a
single statement may return multiple results as well as output
parameter values. In these cases, the commit occurs when all results and
output parameter values have been retrieved.
NOTE: If this method is called during a transaction, the transaction is committed.
setAutoCommit
in interface java.sql.Connection
autoCommit
- true
to enable auto-commit mode;
false
to disable it
java.sql.SQLException
- if a database access error occursgetAutoCommit()
public boolean getAutoCommit() throws java.sql.SQLException
Connection
object.
getAutoCommit
in interface java.sql.Connection
Connection
object's
auto-commit mode
java.sql.SQLException
- if a database access error occurssetAutoCommit(boolean)
public void commit() throws java.sql.SQLException
Connection
object.
This method should be
used only when auto-commit mode has been disabled.
commit
in interface java.sql.Connection
java.sql.SQLException
- if a database access error occurs or this
Connection
object is in auto-commit modesetAutoCommit(boolean)
public void rollback() throws java.sql.SQLException
Connection
object. This method should be
used only when auto-commit mode has been disabled.
rollback
in interface java.sql.Connection
java.sql.SQLException
- if a database access error occurs or this
Connection
object is in auto-commit modesetAutoCommit(boolean)
public void close() throws java.sql.SQLException
Connection
object's database and JDBC
resources immediately instead of waiting for them to be automatically
released.
Calling the method close
on a Connection
object that is already closed is a no-op.
Note: A Connection
object is automatically
closed when it is garbage collected. Certain fatal errors also
close a Connection
object.
close
in interface java.sql.Connection
java.sql.SQLException
- if a database access error occurspublic boolean isClosed() throws java.sql.SQLException
Connection
object has been
closed. A connection is closed if the method close
has been called on it or if certain fatal errors have occurred.
This method is guaranteed to return true
only when
it is called after the method Connection.close
has
been called.
This method generally cannot be called to determine whether a connection to a database is valid or invalid. A typical client can determine that a connection is invalid by catching any exceptions that might be thrown when an operation is attempted.
isClosed
in interface java.sql.Connection
true
if this Connection
object
is closed; false
if it is still open
java.sql.SQLException
- if a database access error occurspublic java.sql.DatabaseMetaData getMetaData() throws java.sql.SQLException
DatabaseMetaData
object that contains
metadata about the database to which this
Connection
object represents a connection.
The metadata includes information about the database's
tables, its supported SQL grammar, its stored
procedures, the capabilities of this connection, and so on.
getMetaData
in interface java.sql.Connection
DatabaseMetaData
object for this
Connection
object
java.sql.SQLException
- if a database access error occurspublic void setReadOnly(boolean readOnly) throws java.sql.SQLException
Note: This method cannot be called during a transaction.
setReadOnly
in interface java.sql.Connection
readOnly
- true
enables read-only mode;
false
disables it
java.sql.SQLException
- if a database access error occurs or this
method is called during a transactionpublic boolean isReadOnly() throws java.sql.SQLException
Connection
object is in read-only mode.
isReadOnly
in interface java.sql.Connection
true
if this Connection
object
is read-only; false
otherwise
java.sql.SQLException
- if a database access error occurspublic void setCatalog(java.lang.String catalog) throws java.sql.SQLException
Connection
object's database
in which to work.
If the driver does not support catalogs, it will silently ignore this request.
setCatalog
in interface java.sql.Connection
catalog
- the name of a catalog (subspace in this
Connection
object's database) in which to work
java.sql.SQLException
- if a database access error occursgetCatalog()
public java.lang.String getCatalog() throws java.sql.SQLException
Connection
object's current catalog name.
getCatalog
in interface java.sql.Connection
null
if there is none
java.sql.SQLException
- if a database access error occurssetCatalog(java.lang.String)
public void setTransactionIsolation(int level) throws java.sql.SQLException
Connection
object to the one given.
The constants defined in the interface Connection
are the possible transaction isolation levels.
Note: If this method is called during a transaction, the result is implementation-defined.
setTransactionIsolation
in interface java.sql.Connection
level
- one of the following Connection
constants:
Connection.TRANSACTION_READ_UNCOMMITTED
,
Connection.TRANSACTION_READ_COMMITTED
,
Connection.TRANSACTION_REPEATABLE_READ
, or
Connection.TRANSACTION_SERIALIZABLE
.
(Note that Connection.TRANSACTION_NONE
cannot be used
because it specifies that transactions are not supported.)
java.sql.SQLException
- if a database access error occurs
or the given parameter is not one of the Connection
constantsDatabaseMetaData.supportsTransactionIsolationLevel(int)
,
getTransactionIsolation()
public int getTransactionIsolation() throws java.sql.SQLException
Connection
object's current
transaction isolation level.
getTransactionIsolation
in interface java.sql.Connection
Connection.TRANSACTION_READ_UNCOMMITTED
,
Connection.TRANSACTION_READ_COMMITTED
,
Connection.TRANSACTION_REPEATABLE_READ
,
Connection.TRANSACTION_SERIALIZABLE
, or
Connection.TRANSACTION_NONE
.
java.sql.SQLException
- if a database access error occurssetTransactionIsolation(int)
public java.sql.SQLWarning getWarnings() throws java.sql.SQLException
Connection
object. If there is more than one
warning, subsequent warnings will be chained to the first one
and can be retrieved by calling the method
SQLWarning.getNextWarning
on the warning
that was retrieved previously.
This method may not be
called on a closed connection; doing so will cause an
SQLException
to be thrown.
Note: Subsequent warnings will be chained to this SQLWarning.
getWarnings
in interface java.sql.Connection
SQLWarning
object or null
if there are none
java.sql.SQLException
- if a database access error occurs or
this method is called on a closed connectionSQLWarning
public void clearWarnings() throws java.sql.SQLException
Connection
object.
After a call to this method, the method getWarnings
returns null
until a new warning is
reported for this Connection
object.
clearWarnings
in interface java.sql.Connection
java.sql.SQLException
- if a database access error occurspublic java.sql.Statement createStatement(int resultSetType, int resultSetConcurrency) throws java.sql.SQLException
Statement
object that will generate
ResultSet
objects with the given type and concurrency.
This method is the same as the createStatement
method
above, but it allows the default result set
type and concurrency to be overridden.
createStatement
in interface java.sql.Connection
resultSetType
- a result set type; one of
ResultSet.TYPE_FORWARD_ONLY
,
ResultSet.TYPE_SCROLL_INSENSITIVE
, or
ResultSet.TYPE_SCROLL_SENSITIVE
resultSetConcurrency
- a concurrency type; one of
ResultSet.CONCUR_READ_ONLY
or
ResultSet.CONCUR_UPDATABLE
Statement
object that will generate
ResultSet
objects with the given type and
concurrency
java.sql.SQLException
- if a database access error occurs
or the given parameters are not ResultSet
constants indicating type and concurrencypublic java.sql.PreparedStatement prepareStatement(java.lang.String sql, int resultSetType, int resultSetConcurrency) throws java.sql.SQLException
PreparedStatement
object that will generate
ResultSet
objects with the given type and concurrency.
This method is the same as the prepareStatement
method
above, but it allows the default result set
type and concurrency to be overridden.
prepareStatement
in interface java.sql.Connection
sql
- a String
object that is the SQL statement to
be sent to the database; may contain one or more ? IN
parametersresultSetType
- a result set type; one of
ResultSet.TYPE_FORWARD_ONLY
,
ResultSet.TYPE_SCROLL_INSENSITIVE
, or
ResultSet.TYPE_SCROLL_SENSITIVE
resultSetConcurrency
- a concurrency type; one of
ResultSet.CONCUR_READ_ONLY
or
ResultSet.CONCUR_UPDATABLE
ResultSet
objects with the given type and concurrency
java.sql.SQLException
- if a database access error occurs
or the given parameters are not ResultSet
constants indicating type and concurrencypublic java.sql.CallableStatement prepareCall(java.lang.String sql, int resultSetType, int resultSetConcurrency) throws java.sql.SQLException
CallableStatement
object that will generate
ResultSet
objects with the given type and concurrency.
This method is the same as the prepareCall
method
above, but it allows the default result set
type and concurrency to be overridden.
prepareCall
in interface java.sql.Connection
sql
- a String
object that is the SQL statement to
be sent to the database; may contain on or more ? parametersresultSetType
- a result set type; one of
ResultSet.TYPE_FORWARD_ONLY
,
ResultSet.TYPE_SCROLL_INSENSITIVE
, or
ResultSet.TYPE_SCROLL_SENSITIVE
resultSetConcurrency
- a concurrency type; one of
ResultSet.CONCUR_READ_ONLY
or
ResultSet.CONCUR_UPDATABLE
CallableStatement
object containing the
pre-compiled SQL statement that will produce ResultSet
objects with the given type and concurrency
java.sql.SQLException
- if a database access error occurs
or the given parameters are not ResultSet
constants indicating type and concurrencypublic java.util.Map getTypeMap() throws java.sql.SQLException
Map
object associated with this
Connection
object.
Unless the application has added an entry, the type map returned
will be empty.
getTypeMap
in interface java.sql.Connection
java.util.Map
object associated
with this Connection
object
java.sql.SQLException
- if a database access error occurssetTypeMap(java.util.Map)
public void setTypeMap(java.util.Map map) throws java.sql.SQLException
TypeMap
object as the type map for
this Connection
object. The type map will be used for the
custom mapping of SQL structured types and distinct types.
setTypeMap
in interface java.sql.Connection
map
- the java.util.Map
object to install
as the replacement for this Connection
object's default type map
java.sql.SQLException
- if a database access error occurs or
the given parameter is not a java.util.Map
objectgetTypeMap()
public void setHoldability(int holdability) throws java.sql.SQLException
ResultSet
objects
created using this Connection
object to the given
holdability.
setHoldability
in interface java.sql.Connection
holdability
- a ResultSet
holdability constant; one of
ResultSet.HOLD_CURSORS_OVER_COMMIT
or
ResultSet.CLOSE_CURSORS_AT_COMMIT
java.sql.SQLException
- if a database access occurs, the given parameter
is not a ResultSet
constant indicating holdability,
or the given holdability is not supportedgetHoldability()
,
ResultSet
public int getHoldability() throws java.sql.SQLException
getHoldability
in interface java.sql.Connection
ResultSet.HOLD_CURSORS_OVER_COMMIT
or
ResultSet.CLOSE_CURSORS_AT_COMMIT
java.sql.SQLException
- if a database access occurssetHoldability(int)
,
ResultSet
public java.sql.Savepoint setSavepoint() throws java.sql.SQLException
setSavepoint
in interface java.sql.Connection
java.sql.SQLException
public java.sql.Savepoint setSavepoint(java.lang.String name) throws java.sql.SQLException
setSavepoint
in interface java.sql.Connection
java.sql.SQLException
public void rollback(java.sql.Savepoint savepoint) throws java.sql.SQLException
rollback
in interface java.sql.Connection
java.sql.SQLException
public void releaseSavepoint(java.sql.Savepoint savepoint) throws java.sql.SQLException
releaseSavepoint
in interface java.sql.Connection
java.sql.SQLException
public java.sql.Statement createStatement(int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws java.sql.SQLException
createStatement
in interface java.sql.Connection
java.sql.SQLException
public java.sql.PreparedStatement prepareStatement(java.lang.String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws java.sql.SQLException
prepareStatement
in interface java.sql.Connection
java.sql.SQLException
public java.sql.CallableStatement prepareCall(java.lang.String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws java.sql.SQLException
prepareCall
in interface java.sql.Connection
java.sql.SQLException
public java.sql.PreparedStatement prepareStatement(java.lang.String sql, int autoGeneratedKeys) throws java.sql.SQLException
prepareStatement
in interface java.sql.Connection
java.sql.SQLException
public java.sql.PreparedStatement prepareStatement(java.lang.String sql, int[] columnIndexes) throws java.sql.SQLException
prepareStatement
in interface java.sql.Connection
java.sql.SQLException
public java.sql.PreparedStatement prepareStatement(java.lang.String sql, java.lang.String[] columnNames) throws java.sql.SQLException
prepareStatement
in interface java.sql.Connection
java.sql.SQLException
protected java.lang.String getPath()
protected java.lang.String getExtension()
protected char getSeperator()
protected boolean isSuppressHeaders()
protected boolean isTrimString()
protected java.lang.String getCharset()
protected long getMaxFileSize()
protected java.lang.String getLineBreakEscape()
protected java.lang.String getCarriageReturnEscape()
protected boolean getUseQuotes()
protected boolean getUseQuotesEscape()
|
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SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |